Djokovic, Federer survive; Vika now 21-0
INDIAN WELLS, California (AP)—Top-ranked Novak Djokovic and No. 3 Roger Federer each needed three sets to reach the quarterfinals of the BNP Paribas Open on Wednesday, while No. 1 Victoria Azarenka improved to 21-0 on the season with a straight-set win on the women’s side. Second-ranked Rafael Nadal beat 21st-seeded